That's why I used to love using sunsinger, before the nerf. Back during the "Firebolt Heyday", I always thought, doesn't anyone know how good Solar Grenades, with ToF & VF, are? As a Control player, I got so many multi-kills, by tossing a Solar Grenade on a group, capping a zone. While Firebolts would take you down to a sliver, and burn for 14 seconds; Solars would kill, if they didn't escape fast enough, and they burned for just as long. Just hit them with a solar, and shoot them all once, and the burn would finish them off. Or, kill supers with them, by jumping over their heads, back-n-forth, dropping solars down on them. I don't use my warlock as much now, but as a hunter main, I've had solars thrown at me recently, and you could almost stand inside of it until it burned out, without dying.